Extension curtain-roller.



0. .E. ENELL. EXTENSION {IURTAIN ROLLER. APPucATloN FILED SEPT. 2o.|915.

Patented Apr. 3, 1917.

11N TEU @TW-ATF@ PATENT @FFllCtEty OTTO EDWARD ENELL, OF JERSEY CITY,NEW JERSEY, ASSIGNOR TO UNIQUE SPECIALTY co., TNC., or NEW YORK, N. Y.

EXTENSION CURTAIN-ROLLER.

@ummm-umg Specification of Letters Patent.

Patented Apr. 3, 19.1 7.

Application filed September 20, 1915. Serial No. 51,558.

To all wlwm t may concern:

Be it known that I, OTTO EDWARD ENELL, a citizen of the United States,and resident of Jersey City, in the county of Hudson and State of NewJersey, have invented certain new andl useful Improvements in ExtensionCurtain-Rollers, of which the following is a specification.

This invention relates to extension curtain rollers. Itsprimary noveltyconsists in a roller comprising outer tubes of paper,

or other pliable material the walls of which v are completely closed andinner tubes of tin or other metal which telescope therewith so that thelength ofthe curtain roller can be varied. |lhe latter tubes havelongitudinal openings, and plugs are driven into the latter tubes'tolock them with the outer tubes of paper.

In the accompanying drawings Figure 1 represents a longitudinal axialsection of one form of the invention with some of its appurtenances infull; Fig. 2 represents a section of Fig. 1, as on the line 2, 2; Fig. 3is a section as on the line 3, 3 of Fig. 1; Fig. 4 is a' section as onthe line of 4, 4 of Fig. 1; Fig. 5 shows an axial section of amodification of the invention; Fig. 6 is a section of Fig. 5 as on theline 6, 6; Fig. 7 shows a sectio-n of Fig. 5 as on the line 7 7; Fig. 8shows an axial section of a second modification; Fig. 9 shows an axialsection of a third modification; Fig. 10 is a sectionv of Fig. 9 on theline 10, 10; Fig. 11 shows a section of Fig. 9 on the line 11, 11 andFig. 12 shows an axial section of a fourth modification of theinvention.

Referring to Figs. 1 to 4 a curtain roller is shown with the outer papertube 20 and the outer paper tube 21, both of the same outside diameter,the tube 21 being of a somewhat larger internal diameter than the tube20. VJithin the tube 21 is forced the metallic expansible inner tube 22which has formed therewith the longitudinal slot 23. A journal andclamping plug 26 lwith, an axial opening is forced into the expansibleinner tube 22 and locks the said tube 22 with the paper tube 21. An endbearing and clamping plug 27 is forced into the tube 2 2 at the outerend thereof. A journal cap 28 encircles the end of the paper tube 21 andhas a central journal opening. A11 eXPansible metallic tube or liner 33is located within the paper tube 20 and telescopes with thev tube 22.The latter tube has formed therein the longitudinal slot 34. A clampingand bearing plug 35 with an axial opening is forced into the tube 33 andlocks together the latteigthe tube 22 and the paper tube 21. An end`bearing and clamping plug 36 with a central opening is forced into theouter end of the tube 33 and clamps said tube with the paperr tube 20.vAn anchor and journal plug 39 with an axial opening is forced into thetube 33 and clamps together both of said expansible tubes and the papertube 21. A ratchet cap 40 encircles the outer end of the paper tube 2Oand has pivoted thereto the ratchet pawls 41.

A shaft tube is indicated at and has formed therewith the longitudinalslot 46. The tube 45 is journaled in the openings of the plugs 35, 36and 39. A tubular spring anchor 47 with the rectangular end 48 issupported on the tube 45. A ratchet disk 49 is fastened to the anchor4,7 and coacts with the pawls 41. n

A spring 50 has one end fastened to the tubular anchor 47 and the otherend thereof is fastened to the anchor and journal plug 39. A rectangularanchor support 51 has connected thereto the shifting bar 52.

A clamping bracket 53 which is secured to a stationary support has anopening 54 for the bar 52, and a clamping screw 55 coacts with saidopening to clamp the bar 52 in different positions. A second opening 56in the bracket 53 coa-cts with the clamping screw 57 to clamp a cord, orchain, as will be explained. A shaft 60 telescopes with the shaft tube45` and has extending therefrom a pin 61 lwhich latter engages the slot46 of the tube 45. The shaft 60 and shaft tube 45 constitutes together atelescope shaft. At the outer end of the shaft tube45 are fastened thepair of pulleys 65 and 66. A bracket 67 has journaled therein a pulley68. A Cord has one end thereof fastened in the opening 56, leads to andis wound around the pulley 65. From the latter the said cord leads overthe pulley 68 and then is wound around the pulley 66. The cord 70 thenleads to and is fastened to one end of the helical spring 71. The otherend of the latter-spring is fastened to the bracket 53, by means of thecord 73 and eyelet 74. To the outer end of the shaft 60 are fastened thepair of pulleys 75 and 76. A bracket 77 has journaled therein the guidepulley 78. A

bracket 80 has formed therein an opening 81 which latter coacts with theclamping screw 82. A cordy 83 has one end fastened in the opening 81,then leads to and is wound once around the pulley 75, from which latterit leads over the pulley 78. From thence the cord 83 leads to and iswound once around the pulley 76 and is then fastened to one end of thehelical spring 84. The otherv end of the latter spring is fastened tothe cord 85 which in turn is fastened to an eyelet 86 Yextending fromthe bracket 80.

To operate the curtain roller, the operator gives the proper tension tothe spring 50 in the usual way before the cords and 83 are wound aroundtheir coacting pulleys. When the operator wishes to raise or lower thecurtain, not shown of the roller, he pulls said curtain so as todisengage the pawls 41 in theusual way, and the roller turns on theshaft 60 and on the shaft tube 45, the two latter with their pulleysremaining stationary. When the roller is to be bodily raised or lowered,the operator moves the shifting bar 52 up or down. This turns thepulleys 65, 66 and 75 and 76 the same amounts, by coacting with theircords and maintainsI the roller in horizontal positions. The length ofthe roller can be shortened by cutting off a portion of either of thepaper tubes 20 or 21 and telescoping somewhat further the tube- 33 withthe metallic tube 22 and telescoping somewhat further the shaft 60 withthe shaft tube 45. The length of the roller can be increased byseparating somewhat further the paper tube 20 from 21 and shaft tube 45from the shaft 60. When the tubes 20 and 21 are separated, as justexplained, a tube of the same diameters as 21 is placed between theadjoining ends of the tubes 20 and 21.

In the modification of the invention shown in Figs. 5, 6 and 7 a centralouter paper tube 90, has forced therein the central metallic expansibletube 91 having the longitudinal slot 92. A clamping plug 93 locks thetube 91 with the tube 90. Abutting against the ends'of the central outerpaper tube 90 are shown the end outer paper tubes 95 and 96 which aresomewhat smaller in internal di- Y ameter than the paper tube 91, butare of the same outside diameter as said tube 91.

An eXpansible metallic tube 100 with the longitudinal slot 101 is forcedinto the paper tube 96 and an eXpansible metallic tube `102 with thelongitudinal slot 103 is forced in the paper tube 95. 'The tubes 100 and102 telescope with the tube 91. A clamping plug 106 is forced into thetube 100 and locks the latter tube with the tube 96. A clamping plug 107locks the tube 102 with the tube 95. A clamping plug 108 locks togetherthe tubes 100, 91 and tube 90, and a clamping plug 109 locks togetherthe tubes 102, 91 and the tube 90.

An end bearing and journal plug 112 is forced into the outer end of thetube 100, and

'an anchor plug 118 is also forced into the tube 100. A spring stick 119abuts with one end in the plug 118 and the other end is made tubular tosecure the end plug 120 having the rectangular end 121. A spring 122 hasone end fastened to the said anchor plug 11S and the other end thereofis fastened to the spring stick 119. cap 40 with its pawls, as alreadydescribed, is secured to the end of the tube 96. A ratchet disk 49fastened to the plug 120 coacts with the latter pawl.

An end clamping plug 125 locks the tube 102 with the tube 95. A pivot126 is supported in the latter plug. The modification of the roller justdescribed can easily be shortened at either end by cutting ofi' aportion of the tube 95 or 96.

In Fig. 8 the tubes of the curtain roller are the same as thosedescribed in Figs. 1 to 4 and are indicated at 20, 21, 22 and 33. Aclamping plug 127 locks the tube' 22 with the tube 21. The end clampingplug 125 with its pivot is the same as already described. The anchorplug 118 is the same as described and supports one end of the springstick 130. An end plug 131 with the rectangular end 132 is fastened tothe spring stick 130. An end journal and clamping plug 133 locks thetube 33 with the tube 20. The ratchet cap 40 with its appurtenances issame as already described. A spring 122 is secured in operativeposition, as described.

' Referring to the modification shown in Figs. 9, 10 and 11, outer papertubes of the same outside diameter are indicated at 138 and 139.Theinside diameter of the latter tube is somewhat greater than theformer. An expansible metallic tube 140 having a longitudinal slot 141is forced into the tube 139, and an eXpansible metallic tube 142 withthe longitudinal slot 143 is forced into the tube 138 and telescopeswith the tube 140. A clamping plug144 is forced into the tube 140 andlocks said tube 140 with the tube139. The end clamping plug 125 is shownkwith its pivot 126 as already dcscribed. A clamping plug 145 is forcedinto the tube 142 and locks said tube with the tube 140 and the tube139. A spring cartridge is inserted in the roller and comprises an outerpaper tube 148 which is inserted in the tube 142. An anchor plug 149 issecured in .one end of the tube 148 and a clamping and journal plug 150is inserted in the other end of said tube. The ratchet cap 40 with itsappurtenances as already described is secured to the end of the tube138. The spring stick 119 has one end supported in the anchor plug 149and the other end of the stick is supported by the plug 131 having therectangular end 132. The novelty of the modification just de- A ratchetscribed consists in providing the spring cartridge Which can easily beinserted in place.

The modification shown in Fig. 12 is similar to the construction shownin Figs. 1 to 4, but instead of a pair of pulleys like 65, 66 and 75 and76, only one pulley is used at each end of the roller.

The outer tubes 20 and 21 are indicated With their expansible metallicinner tubes 22 and 33. An end journal and clamping plug 155 is forcedinto the tube 22, and the journal and clamping plug 36 is forced intothe tube 33. The ratchet cap 40 with its appurtenances is shown asalready described. The tubular spring anchor 47 With 'the rectangularend 48 has fastened thereto the pulley 156 and the shaft 60 has fastenedthereto the pulley 157. The shifting bar 52 has its anchor support 51engaged With the rectangular end 48. A hook 160 has fastened thereto oneend of the rope 161 which makes one turn around the pulley 156 and thenis fastened to a bracket, not shown, similar' to 53. lIhe lower end ofthe shifter bar 52 is clamped to such bracket 53 as already described inconnection with Fig. 1. A hook is shown at 165 which has fastenedthereto one end of the cord 166. The latter makes one turn around thepulley 157 and then is fastened to a bracket similar to 80 as alreadydescribed.

Having described my invention What I desire to secure by Letters Patentand claim 1s:-

1. In a roller of the character described the-combination of a pair ofouter tubes of pliable material and an inner tube located Within eachouter tube, the latter tubes telescoping with each other and means tolock the inner tubes together and to the outer tubes.

2. In a roller of the character described the combination of a pair ofouter tubes of pliable material and of equal outside diameter with theirWalls completely closed, the inner diameter of one of said tubessomewhat greater than the other, an eX- pansible inner tube With alongitudinal slot in its Wall in each of said outer tubes, the lattertubes telescoping with each other and a plug in each inner tube to lockit in place.

3. In a roller of the character described the combination of a pair ofouter tubes of pliable material and of equal outside diameter with'their Walls completely closed,

Copies of this patent may be obtained for ive cents each, by addressingthe the inner diameter of one of said tubes somewhat greater than theother, a metallic expansible inner tube having a longitudinal slot inits Wall forced into each outer tube, the inner tubes telescoping Witheach other and a plurality of clamping plugs in each inner tube to lockthe latter to the outer tubes and to each other.`

4. In a roller of the character described the combination of a pair ofouter tubes of pliable material and of equal outside di ameter Withtheir Walls completely closed, an eXpansible inner tube Within eachouter tube locked to its outer tube, the latter tubes telescoping Witheach other and locked to each other, a telescopic shaft in the .axialcenter of the roller, a pulley secured to each end of said shaft, an endbearing and clamping plug forced into the outer end of each inner tube,constituting bearings for the roller, means to locate the roller todifferent levels, and a cord Wound around each pulley to maintain theaXial center of the roller in a horizontal plane at different levels.

5. In a roller of the character described, the combination of a shaft inits axial center to turn thereon, an anchor and journal plug in theroller constituting a bearing for said shaft and clamped to the innerWall of the roller, an end bearing and clamping plug in the roller andat each end thereof, a tubular spring anchor supported on one end ofsaid shaft and tightly supported in one of said clamping plugs, theother end of the shaft journaled in the clamping plug a't the other endof the roller, a shifting bar have ing a rectangular end, the latterlocked With said spring anchor, a spring Within the roller with one endfastened to the anchor plug and the other end fastened to said springanchor, a pulley fastened to each end `of said shaft, a cord Woundaround each of said pulleys to maintain them at the same level When saidroller is placed at different levels by means of the shifting bar, andmeans to maintain equal tension on each of said cords.

Signed a't the borough of Manhattan in the county of New York and StateofNeW York this 17th day of September A. D.

OTTO EDWARD ENELL. Witnesses:

A. A. Dn BONNEVILLE, H. D. JOHNSON.

Commissioner of Patents,

Washington, D. C.

